{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["process parameter", "engineering feature", "process characterization", "enabling technology", "material", "concept or principle"], "input": "The repaired specimens have lower plasticity and slightly higher strength than base metal ."}
{"process parameter": [], "engineering feature": [], "process characterization": [], "enabling technology": [], "material": ["base metal"], "concept or principle": []}